Re: [PATCH v2 0/3] Extend the vTPM proxy driver to pass locality to emulator

From: Jarkko Sakkinen
Date: Wed May 03 2017 - 18:39:08 EST


On Fri, Apr 28, 2017 at 09:02:15AM -0400, Stefan Berger wrote:
> The purpose of this series of patches is to enable the passing of the locality
> a command is executing in to a TPM emulator. To enable this we introduce a new
> flag for the device creation ioctl that requests that the locality be prepended
> to every command. For applications to check which flags the driver supports, we
> add a new ioctl that returns a bitmask of supported flags.

This is a weird change proposal as you could use tpm_vtpm_proxy for
other than some TPM emulator.

>
> v1->v2:
> - fixed return value from function in patch 3/3
>
>
> Stefan Berger (3):
> tpm: vtpm_proxy: Add ioctl to get supported flags
> tpm: vtpm_proxy: Implement request_locality
> tpm: vtpm_proxy: Add ioctl to request locality prepended to command
>
> drivers/char/tpm/tpm_vtpm_proxy.c | 53 +++++++++++++++++++++++++++++++++++----
> include/uapi/linux/vtpm_proxy.h | 15 ++++++++++-
> 2 files changed, 62 insertions(+), 6 deletions(-)
>
> --
> 2.4.3
>

/Jarkko